TWI649679B - Position indicator - Google Patents

Abstract

A position indicator is provided which is provided with a holding mechanism capable of firmly fixing the core and further capable of reliably transmitting signals from the internal circuit to the core.

The position indicator is provided with: a core body having electrical conductivity; and a conductive elastic member having a grip portion for holding and holding the core body, and detachably fitting the core body; The core holder is provided with a conductive body and a conductive elastic member for holding the core body to be fitted to the conductive elastic member; and a signal transmitting portion; and an electrical connecting member It is used to make electrical connection between the core support and the signal transmitter. The signal from the signal transmitting unit is transmitted through the core through the electrical connecting member, the core holder, and the conductive elastic member.

Description

Position indicator

The present invention relates to a position indicator of an electrostatic capacitance type which is used together with a position detecting device and which has a pen pressure detecting function.

A capacitance detecting device (touch panel) capable of performing an input operation by a finger as an input device of a portable terminal such as a tablet PC (Personal Computer) or a mobile phone terminal is widely used (for example, In the recent years, the use of a position indicator that is configured as a pen type has been increased as a pointer, not only a finger, but also a patent document (Japanese Laid-Open Patent Publication No. 2011-243081).

In the prior art, a position indicator for a position detecting device of such an electrostatic capacitance type mainly uses a type called a passive electrostatic pen. The passive electrostatic pen is provided with a conductive rubber or the like at the front end (pen tip) of the core, and flows to the human body by passing the static electricity through the conductive rubber and the conductive frame of the pen type position indicator. Instead, it is possible to make a touch input instead of a finger.

However, this prior art position indicator, which is called a passive electrostatic pen, has a certain degree of contact area for the touch panel because the body is a way of absorbing static electricity. That is, in the passive electrostatic pen of the prior art, the contact area between the conductive rubber and the touch panel is required to be equal to the contact area of the touch panel and the finger tip. Therefore, the passive electrostatic pen of the prior art, even if it is a position indicator of a pen type, it is difficult to perform detailed operations on the touch panel.

Therefore, recently, there has been a pen-type position indicator (active electrostatic pen) which does not absorb static electricity but transmits a signal from the position indicator side to detect a signal on the touch panel side. The advantage of this active electrostatic pen is that since the signal is sent by the pen tip, even if the pen tip is made thin, the position of the position indicator can be detected by the touch panel.

Further, as the position indicator is a thinner tip of the tip end portion of the core body, as a further function of the position indicator, it is required to have a writing feeling like paper and pencil. In order to add a change to the writing feeling, it is conceivable to change the material of the nib of the core of the position indicator. For example, a metal nib, a resin nib, a felt-like nib, etc. are proposed. In particular, when the resin is made of a pen tip, the resin itself can be used with various materials, and the writing feeling can be changed in accordance with various materials. In the active electrostatic pen, the core can be easily changed to the writing feeling by exchanging the core into a core having a pen tip made of such a different material.

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2011-243081

However, as in the above, in the case of the position indicator, when a core having a nib of various materials is prepared, it is difficult to make a core having a correct diameter due to a difference in material of various materials. The situation of the body. Further, in consideration of the difference in hardness between the use environment and the material, the diameters of the cores may not all be the same, and there may be cases where the difference is made to be different.

On the other hand, in the active electrostatic pen, since it is necessary to extract the signal from the internal circuit of the active electrostatic pen and reliably conduct the signal to the core, the exchangeable core is maintained. Part of the electrical contact has become more certain and important.

In the active electrostatic pen of the prior art, as a structure for holding the core firmly, a metal gasket or the like which is used to fix it to the holder is used for the metal core. However, when it is fixed by a metal gasket, the diameter of the core body is not allowed to be any error, and in the case of a bundle of fibers like a felt core, it is pulled. The problem.

The present invention is provided in view of the above problems. One object is to provide a position indicator capable of firmly fixing a core body and further capable of reliably transmitting a signal from an internal circuit to a holding mechanism at a core.

In order to solve the above problems, the present invention provides a position indicator comprising: a core body having electrical conductivity; and a conductive elastic member having a grip for holding and holding the core body And the core body is detachably fitted; and the core holder is electrically conductive, and the conductive elastic member is fitted to hold the conductive elastic member The core body; and the signal transmitting unit; and the electrical connecting member are configured to perform electrical connection between the core support device and the signal transmitting portion, and the signal transmitting unit The signal is transmitted through the core through the electrical connection member, the core holder, and the conductive elastic member.

In the position indicator according to the invention of the above configuration, the conductive core is provided by being fitted to the conductive elastic member that is fitted to the conductive core holder. Hold at the core holder. Further, the signal from the signal transmitting unit is supplied to the conductive core through the conductive core holder and the conductive elastic member, and is sent to the outside by the core.

According to the position indicator of the present invention, since the core system is fitted to the conductive portion having the grip portion for holding and fixing the core body At the elastic member, even if there is a stagger in the diameter of the core, the difference in the diameter is absorbed by the elastic force of the conductive elastic member and is held and held by the grip portion, so that the core system becomes The state in which the conductive elastic member is firmly fitted to the conductive elastic member, and even if the core body is formed of, for example, felt, the bundle of fibers is not pulled by the metal gasket, and it can be made good. Chimeric state.

Further, since the core body is configured to be detachably fitted to the conductive elastic member, the core system can be easily exchanged. In addition, the body is a structure in which the conductive core is fitted to the conductive elastic member, and the conductive elastic member to which the core is fitted is fitted to the conductive core holder. The configuration is such that the core holder and the signal transmitting unit are electrically connected by the electrical connection member, and therefore, from the internal circuit including the signal generating circuit to the core The electrical connection is carried out reliably, and the signal from the internal circuit is reliably conducted to the core and sent out from the core to the outside.

According to the invention, the conductive core member is fitted to the conductive elastic member, and the conductive elastic member to which the core is fitted is fitted to the conductive core holder. Therefore, it is possible to obtain the effect that the core can be surely fixed even if there is a variation in the diameter of the core, and further, it is possible to provide a kind from the inside. The signal from the circuit is via the core holder And the conductive elastic member is electrically and reliably conducted to the position indicator at the core.

1‧‧‧ position indicator

2‧‧‧Shell

21‧‧‧Shell body

22‧‧‧Front cap

23‧‧‧ Back hat

3‧‧‧Substrate holder

3a‧‧‧Parts for pressure sensitive parts

3b‧‧‧Printed substrate mounting table

4‧‧‧ core

5‧‧‧Battery

6‧‧‧ core holder

7‧‧‧Parts for pressure sensing

8‧‧‧Printing substrate

9‧‧‧Electrical elastic members

10‧‧‧IC

13‧‧‧ coil spring

14‧‧‧ Conductor terminal components

Fig. 1 is a view for explaining a configuration example of an embodiment of a position indicator caused by the present invention.

Fig. 2 is a cross-sectional view showing an essential part for explaining a configuration example of an embodiment of a position indicator according to the present invention.

Fig. 3 is an exploded perspective view for explaining a configuration example of an important part of an embodiment of a position indicator according to the present invention.

Fig. 4 is an exploded perspective view for explaining a configuration example of an important part of an embodiment of a position indicator according to the present invention.

Fig. 5 is a view for explaining another configuration example of an important part of an embodiment of a position indicator according to the present invention.

Fig. 6 is a view for explaining another configuration example of an important part of an embodiment of a position indicator according to the present invention.

Fig. 7 is a view for explaining another configuration example of an important part of an embodiment of a position indicator according to the present invention.

Fig. 8 is a view for explaining another configuration example of an important part of an embodiment of a position indicator according to the present invention.

Fig. 9 is a view for explaining another configuration example of an important part of an embodiment of a position indicator according to the present invention.

[Fig. 10] An embodiment for the position indicator caused by the present invention Other structural examples of important parts of the state are illustrated.

Hereinafter, an embodiment of a position indicator caused by the present invention will be described with reference to the drawings. 1 to 4 are views for explaining a configuration example of the position indicator 1 according to the embodiment of the present invention. The position indicator 1 of this embodiment is used together with an electronic device having a position detecting device (touch panel) having a capacitance type. Here, for convenience of explanation, an illustration of an electronic device including a position detecting device (touch panel) is omitted.

Fig. 1 is a view showing the overall outline of the position indicator 1 of this embodiment. For convenience of explanation, a part of the casing 2 (frame) of the position indicator 1 is broken and the inside thereof is broken. Made a show. Further, Fig. 2(A) is a view for explaining the internal configuration of the position of the position indicator 1 on the pen tip side which is not broken in Fig. 1, and the position indicator 1 of this embodiment is used. An enlarged cross-sectional view of the important part. Further, Fig. 2(B) is a diagram schematically showing an important portion of the position indicator 1 of the embodiment and taking into consideration the concept of a higher position.

As shown in Fig. 1, the position indicator 1 is generally formed to have an elongated shape in the axial direction and configured such that one of the axial directions is a pen tip side and has an opening and the other of the axial directions is A casing 2 of a closed cylindrical casing.

The housing 2 is made of a conductive material, in this case It is made of aluminum which has been processed by oxygen aluminum, and is provided by a casing body 21 having a cylindrical shape having a hollow portion therein, and a cap 22 and a rear cap 23 before being joined with the casing body 21, And constitute it. The casing 2 is formed by press fitting the front cap 22 and the rear cap 23 into the casing body 21.

The front cap 22 is configured as a cylindrical body having a through hole 22a having an axial direction as shown in FIG. 1 and FIG. 2(A), and a portion on the pen tip side of the position indicator 1 is The outer shape has a tapered shape in which the outer diameter becomes smaller as it approaches the pen tip. Moreover, in this embodiment, the tip protection member 24 is fitted to the end portion of the front cap 22 on the pen tip side. The nib protective member 24 is made of an insulating material, for example, made of an ABS resin, and has a through hole 24a in the axial direction, and has a tapered shape continuous with the tapered shape of the front cap 22. The opening on the pen tip side of the through hole 24a of the nib protective member 24 is the opening 1a into which the core 4 of the position indicator 1 is inserted.

The core 4 is made of a conductive material, in this example, a resin in which metal powder is mixed, and is integrally formed with a core body portion 41 constituting a shaft portion and a core having a larger diameter. The front end portion 42 of the body portion 41 having a larger diameter. As shown in Fig. 2(A), the core 4 is inserted into the through hole 24a of the nib protective member 24, and is inserted from the opening 1a. The maximum outer diameter of the front end portion 42 of the core 4 is selected to be smaller than the inner diameter of the through hole 24a of the nib protective member 24. Therefore, the core 4 is formed in the through hole 24a of the nib protective member 24. Internally free to move in the direction of the axis.

In the hollow portion of the casing 2, as shown in Figs. 1 and 2(A), the substrate holder 3, the battery 5, and the core holder 6 are housed.

The substrate holder 3 is made of an insulating resin, for example, a liquid crystal polymer, and is housed in the hollow portion of the casing 2, and is configured to have a long side in the axial direction of the position indicator 1. The pressure sensitive component holding portion 3a and the printed circuit board mounting base portion 3b are continuously disposed in the direction. The pressure-sensitive component holding portion 3a is configured to have a cylindrical shape in which the hollow portion of the pressure-sensitive component 7 (a plurality of components for detecting the writing pressure) is accommodated in the hollow portion. The printed circuit board mounting base portion 3b has a boat-like shape in which the printed circuit board 8 is placed and held, and is configured to have a shape in which the cylindrical body is cut in a half direction in the axial direction.

The substrate holder 3 is housed in the casing 2 such that the pressure-sensitive component holding portion 3a is on the side of the core 4 . Further, the pressure-sensitive component holding portion 3a is bonded to the core holder 6 for holding the core 4, and is configured to conduct the pressure (pen pressure) applied to the core 4 to The pressure-sensitive component 7 of the pressure-sensitive component holding portion 3a.

The outer diameter of the pressure-sensitive component holding portion 3a of the substrate holder 3 is smaller than the inner diameter of the through hole 22a of the front cap 22, whereby the pressure-sensitive component holding portion 3a is thereby It is housed in the through hole 22a of the front cap 22. Moreover, the outer diameter of the printed circuit board mounting base 3b of the substrate holder 3 is set to be larger than the outer diameter of the pressure sensitive component holding portion 3a. The printed circuit board mounting base portion 3b is accommodated in a portion of the casing body 21, which is larger and smaller than the inner diameter of the casing body 21.

The difference between the outer diameters of the printed circuit board mounting portion 3b and the pressure sensitive component holding portion 3a is caused by the connection between the printed circuit board mounting portion 3b of the substrate holder 3 and the pressure sensitive component holding portion 3a. A step portion 3c is formed. The substrate holder 3, as shown in FIG. 2(A), is in contact with the end surface of the front cap 22 at the step portion 3c so as not to face the axis in the casing 2. The manner in which the core 4 side moves is positionally limited.

The terminal conductor 51 is provided at the end of the printed circuit board mounting base portion 3b of the substrate holder 3 opposite to the pressure sensitive component holding portion 3a. The terminal conductor 51 is electrically connected to the positive side terminal 5a of the battery 5 as shown in FIG. 1, and is electrically connected to the copper foil pattern of the power supply line of the printed circuit board 8. Further, a coil spring terminal 52 made of a conductive metal electrically connected to the negative side terminal 5b of the battery 5 is provided at a press fitting portion between the rear cap 23 and the casing body 21.

The battery 5 is inserted into the casing 2 in such a manner as to connect the positive terminal 5a and the terminal conductor 51 as shown in FIG. Further, the rear cap 23 is configured to press the negative-side terminal 5b of the battery 5 by the coil spring terminal 52, and is press-fitted into the casing body 21.

In this embodiment, the case body 21 made of a conductive material is grounded with the printed circuit board 8 as will be described later. Make an electrical connection. Since the rear cap 23 and the housing body 21 are made of a conductive material, the negative terminal 5b of the battery 5 is connected to the ground conductor of the printed substrate 8 via the rear cap 23 and the housing body 21. Electrical connection. On the other hand, the positive side terminal 5a of the battery 5 is electrically connected to the copper foil pattern of the power supply line of the printed circuit board 8 through the terminal conductor 51. Thereby, the voltage of the battery 5 is supplied as the power supply voltage of the circuit formed at the printed circuit board 8.

In this embodiment, on the printed circuit board 8, a signal generating circuit constituting a signal generated from the core 4 of the position indicator 1 and a signal for the core 4 from the signal generating circuit are provided. The IC (Integrate Circuit) 10 of the control circuit for controlling the transmission and the circuit portion formed by the peripheral circuit components thereof. The peripheral circuit unit includes push switches (side switches) 11 and 12 that are turned ON when pressed and returned to OFF when the pressure is stopped. Further, the opening portion penetrating the side surface of the casing body 21 is provided with a resin having elastic insulating properties, for example, pressing portions 11a and 12a made of ABS resin, and pressing switches 11 and 12 The pressing operation of the pressing portions 11a and 12a is turned ON and OFF.

The ON and OFF states of the push switches 11 and 12 are associated with the ON and OFF of the specific functions of the electronic device including the position detecting device, and the IC 10 includes the ON switches of the push switches 11 and 12, The information of the OFF state is included in the signal sent from the position detecting device and transmitted through the core 4 to be transmitted.

The core 4, in this embodiment, the core body portion 41 is The core holder 6 made of a conductive material is fitted through the conductive elastic member 9 to be bonded and held with respect to the core holder 6. In addition, the core holder 6 is configured to be applied to the core 4 by being fitted to the holding member 73 of the pressure-sensitive component 7 in the pressure-sensitive component holding portion 3a of the substrate holder 3. The pressure (pen pressure) is transmitted to the pressure sensing part 7. In this case, the core holder 6 is a coil spring which is an elastic member made of a conductive material such as a conductive metal provided between the core holder 6 and the substrate holder 3. 13. It is configured to be pressed toward the core 4 side constantly with respect to the substrate holder 3. In addition, the coil spring 13 is configured to electrically connect the signal from the IC 10 disposed on the printed circuit board 8 to the core 4 in conjunction with the conductor terminal member 14 to be described later. .

FIG. 3(A) is an exploded perspective view showing a portion of the core 4, the conductive elastic member 9, the core holder 6, the coil spring 13, and the pressure-sensitive component holding portion 3a of the substrate holder 3.

The conductive elastic member 9 is formed, for example, of a conductive rubber, and is formed into a cylindrical shape having a hole portion into which the core main body portion 41 of the core 4 is fitted. In the embodiment, as the hole portion, the conductive elastic member 9 is formed with a through hole 9a having a diameter which is slightly the same as or smaller than the diameter of the core body portion 41 of the core 4. On the side of the core 4 of the conductive elastic member 9, a grip portion 91 having a smaller outer diameter and a thinner portion is formed.

Further, at the conductive elastic member 9, it is formed with The slit portions 92, 93 along the direction of the central axis of the cylinder from the end face on the side of the core 4 in the direction of the central axis of the cylinder. In this case, the slit portions 92 and 93 are formed at positions facing each other with the cylindrical central axis position of the conductive elastic member 9 interposed therebetween. Further, the length of the slit portions 92 and 93 in the central axis direction of the cylinder is set to a length at least beyond the grip portion 91 and also to a portion where the outer diameter of the conductive elastic member 9 is large. Further, at the circumferential side surface of the conductive elastic member 9, the locking projections 94 and 95 are formed at positions facing each other with the central axis of the cylinder interposed therebetween.

With such a configuration, the grip portion 91 is divided into two arcuate portions by the presence of the slit portions 92 and 93, and in this example, the grip portion 91 is made thinner. In part, by the mutual complementation of the two, when the core body portion 41 of the core 4 is inserted into the conductive elastic member 9 and fitted, the grip portion 91 can be easily used by the core body portion 41. The core body portion 41 of the core body 4 is easily inserted and fitted with respect to the conductive elastic member 9 while being elastically displaced toward the outside. In the state in which the core body portion 41 of the core body 4 is fitted through the through hole 9a of the conductive elastic member 9, the elastic restoring force of the grip portion 91 is used to form the core body 4. The core body portion 41 is firmly held. However, the core 4 can be pulled out from the conductive elastic member 9 by stretching with a specific force.

Further, the grip portion 91 does not need to be specifically set to a thin portion as shown in Fig. 2(B), but if it is a thin portion as in this example, it is easy to get from the circle. Cartridge central axis position The advantage of elastic displacement towards the radiation direction.

The locking projections 94 and 95 are formed at positions where the circumferential side surface of the portion other than the grip portion 91 of the conductive elastic member 9 having a large outer diameter is opposed to the cylindrical central axis.

The core holder 6 is made of a conductive material, for example, SUS (Steel Special Use Stainless), and is provided with a housing fitting portion 61 including a recessed hole 61a for accommodating and fitting the conductive elastic member 9. The rod-shaped portion 62 fitted to the holding member 73 of the pressure-sensitive component 7 is integrally formed. The depth in the axial direction of the recessed hole 61a of the accommodating portion 61 is set to be equal to the length of the axial direction of the portion of the conductive elastic member 9 other than the grip portion 91 having a larger diameter.

In the side surface of the housing fitting portion 61 of the core holder 6, the locking projections 94 and 95 of the conductive elastic member 9 when the conductive elastic member 9 is housed in the recess 61a are provided. Opening portions 63 and 64 are formed at corresponding portions. Therefore, if the conductive elastic member 9 is pushed into the housing fitting portion 61 of the core holder 6, as shown in Fig. 2(A), the locking projection 94 of the conductive elastic member 9 is 95 is located at the opening portions 63 and 64 of the accommodating fitting portion 61, and the step portions of the locking projections 94 and 95 are in a state of being in contact with the walls of the openings 63 and 64. By this, the conductive elastic member 9 is in a state of not moving in the axial direction with respect to the accommodation fitting portion 61 of the core holder 6 . That is, the conductive elastic member 9 is locked in the housing fitting portion 61 of the core holder 6. Further, in this example, the bottom of the recessed hole 61a of the housing portion 61 of the core holder 6 is accommodated. In the portion, a recessed hole 61b for accommodating a portion of the core main body portion 41 of the core 4 that protrudes through the through hole 9a of the conductive elastic member 9 is formed.

In the state in which the conductive elastic member 9 is housed in the housing fitting portion 61 of the core holder 6, and is locked, the conductive elastic member 9 and the core holder 6 are accommodated. The dimension of the recessed hole 61a of the joint portion 61 in the axial direction is selected as described above. Therefore, the grip portion 91 of the conductive elastic member 9 is accommodated in the core holder 6 without being received. The joint 61 protrudes inside and exists in an external state. Therefore, when the core body portion 41 of the core 4 is press-fitted into the through hole 9a of the conductive elastic member 9 accommodated in the housing fitting portion 61 of the core holder 6, the handle is held. The portion 91 can be elastically displaced as described above, and the core body portion 41 of the core 4 can be easily press-fitted, and the core body portion 41 to be press-fitted is firmly fixed. Keep it.

Further, after the conductive coil spring 13 is attached to the rod portion 62 of the core holder 6 which is generally accommodated in the conductive elastic member 9 as described above, the rod portion 62 of the core holder 6 is attached. It is fitted to the holding member 73 of the pressure-sensitive component 7 in the pressure-sensitive component holding portion 3a of the substrate holder 3.

In this case, in the position indicator 1 of this embodiment, it is necessary to consider the necessity of supplying the transmission signal generated by the circuit formed on the printed circuit board 8 to the core 4. However, the substrate holder 3 is housed in the pressure sensitive component holding portion 3a. Since the holding member 73 of the pressure-sensitive component 7 is made of a resin which is an insulating material, electrical connection between the core holder 6 and the holding member 73 cannot be performed.

Therefore, in this state, the electrical connection for supplying the signal from the circuit of the printed circuit board 8 to the core 4 cannot be performed. In this embodiment, the coil spring 13 composed of a conductive material provided between the core holder 6 and the pressure-sensitive component holding portion 3a of the substrate holder 3 is provided on the substrate. The conductor terminal member 14 at the pressure-sensitive component holding portion 3a of the holder 3 constitutes an electrical connection member, and the electrical connection member is used to realize the signal transmission circuit from the printed substrate 8. The electrical connection of the signal supply from 8S (refer to Figure 2(B)).

That is, in this embodiment, as shown in Fig. 3(A), at the pressure-sensitive component holding portion 3a of the substrate holder 3, the rod-like portion 62 of the core holder 6 is used. The opening portion of the recessed hole 31 to be inserted is covered, and a conductor terminal member 14 made of a material having electrical conductivity and elasticity, for example, SUS is mounted.

The conductor terminal member 14 is provided with a recessed hole 31 covering the pressure-sensitive component holding portion 3a of the substrate holder 3 and has a core holder 6 as shown in FIGS. 3(A) and (B). The abutting plate portion 141 of the through hole 141a through which the rod portion 62 is inserted and the mounting plate portions 142 and 143 which are orthogonal to each other and which face each other with the abutting plate portion 141. The abutting plate portion 141 and the mounting plate portions 142 and 143 are formed by bending one elongated SUS flat plate.

Through-holes 142a and 143a are provided in the mounting plate portions 142 and 143, respectively. Further, in the mounting plate portion 143, as shown in FIG. 3(B), the pressure-sensitive component holding portion 3a of the substrate holder 3 is integrally provided with the mounting plate portion 143. The portion 144 extends to the extension portion 144 at a portion of the printed substrate mounting table portion 3b. At the front end of the extending portion 144, in this example, a terminal portion 144a soldered to the back surface of the printed substrate 8 is formed, for example.

On the other hand, the side surface above and below the recessed hole 31 of the pressure-sensitive component holding portion 3a of the substrate holder 3 is formed into a flat surface, and the projections 32 and 33 are formed at the respective planes. The opposing distances of the mounting plate portions 142 and 143 are formed to be slightly equal to the opposing distances of the plane in which the projections 32, 33 are formed. Further, the through holes 142a and 143a of the mounting plate portions 142 and 143 are formed at positions corresponding to the positions of the projections 32 and 33.

In addition, the conductor terminal member 14 is sandwiched between the mounting plate portions 142 and 143, and the two surfaces of the pressure-sensitive component holding portion 3a of the substrate holder 3 are formed with the projections 32 and 33. The pressure-sensitive component holding portion 3a of the substrate holder 3 is elastically attached. In this case, the projections 32 and 33 are fitted into the through holes 142a and 143a of the mounting plate portions 142 and 143, and the conductor terminal member 14 is not held by the pressure sensing member of the substrate holder 3. Part 3a is detached.

Further, in a state in which the conductor terminal member 14 is attached to the pressure-sensitive component holding portion 3a of the substrate holder 3, as shown in FIG. 2(A), an extension extending from the conductor terminal member 14 is extended. 144 The terminal portion 144a at the distal end is in contact with the conductor on the back side of the printed circuit board 8 placed on the printed circuit board mounting portion 3b of the substrate holder 3, and is soldered, for example. Thereby, the conductor terminal member 14 and the signal generating circuit formed on the surface of the printed substrate 8 are electrically connected.

Further, as described above, the rod-shaped portion 62 of the core holder 6 fitted to the conductive elastic member 9 passes through the abutting plate portion of the conductor terminal member 14 in a state in which the coil spring 13 is interposed. The through hole 141a of the 141 is inserted into the recessed hole 31 of the pressure sensitive component holding portion 3a of the substrate holder 3, and is fitted to the pressure sensitive component holding portion 3a. The inner diameter of the coil spring 13 is set to be larger than the outer shape of the rod portion 62 of the core holder 6, and is set to be the conductor terminal member 14 which is attached to the pressure sensitive member holding portion 3a. The through hole 141a of the abutting plate portion 141 is larger.

Therefore, the coil spring 13 is in elastic contact with the core holder 6, and abuts against the abutting plate portion 141 of the conductor terminal member 14 to make elastic contact. The coil spring 13 is made of a conductive material, and the conductive elastic member 9 and the core holder 6 are electrically conductive. Therefore, the coil spring 13 and the conductor terminal member 14 are fitted to the core. The conductive elastic member 9 at the holder 6 is electrically connected to the circuit portion of the printed circuit board 8.

Further, with respect to the through hole 9a of the conductive elastic member 9 which is fitted into the core holder 6 which is housed in the casing 2 as described above, the core body portion 41 of the core 4 is as described above. Being inserted In the fitting, the core 4 is held by the conductive elastic member 9 with respect to the core holder 6. In this state, the core 4 is electrically connected to the signal transmitting circuit 8S of the printed circuit board 8, and the signal from the signal transmitting circuit 8S is supplied to the core 4.

In a state in which the core 4 is coupled to the pressure-sensitive component holding portion 3a via the core holder 6, a part of the front end portion 42 of the core 4 passes through the opening of the casing 2. 1a stands out from the outside and is exposed.

Next, the configuration of the pressure-sensitive component holding portion 3a and the pressure-sensitive component 7 of the substrate holder 3, and the cooperation between the holding member 73 of the pressure-sensitive component 7 and the core holder 6 will be described.

FIG. 4 is an exploded perspective view of the pressure-sensitive component 7 housed in the pressure-sensitive component holding portion 3a of the substrate holder 3. The pressure sensing component 7 is housed in the pressure sensitive component holding portion 3a as shown in FIG. 4 to form a pen pressure detecting module. Further, by bonding the core body portion 41 of the core 4 via the core holder 6 at the writing pressure detecting module, the writing pressure applied to the front end portion 42 of the core 4 is by the writing pressure. The pressure sensing component 7 of the module for detection is detected. In this case, the pen pressure detecting module is configured such that a part of the pressure sensing member 7 constituting the writing pressure detecting module is applied to the core portion at the front end portion 42 of the core body 4 4 and the core holder 6 is moved together in the axial direction to detect the writing pressure.

In this example, the printed circuit board 8 is placed on the printed circuit board mounting table portion 3b of the substrate holder 3 and fixed, and the pressure is applied. The component 7 is housed in the pressure-sensitive component holding portion 3a, and the core body 4 and the substrate holder 3 are coupled via the core holder 6, and this can be handled as one module component. Thereafter, the position indicator 1 can be completed by accommodating the module component in the hollow portion of the casing 2. Further, the core body 4 is detachably coupled to the core holder 6 as described above. That is, in the position indicator 1 of this embodiment, the core 4 is configured to be exchangeable.

The pen pressure detecting module of this example is a case where a variable capacitance capacitor having a capacitance change due to a writing pressure applied to the core 4 is used.

The pressure-sensitive component 7 of this example is formed of a plurality of components of the dielectric material 71 and the terminal member 72, the holding member 73, the conductive member 74, and the elastic member 75 as shown in Fig. 4(A). The terminal member 72 is made of a conductive material, for example, made of SUS, and constitutes a first electrode of a variable capacitance capacitor formed by the pressure sensitive component 7. Further, the conductive member 74 is made of, for example, a conductive rubber, and the elastic member is formed of a coil spring made of a conductive material such as SUS. The conductive member 74 and the elastic member 75 are electrically connected to each other and constitute a second electrode of the variable capacitance capacitor.

On the other hand, the pressure-sensitive component holding portion 3a of the substrate holder 3 is configured by a cylindrical body 34 having a hollow portion as shown in FIG. 4(A), and is configured to be used for pressure sensing. The parts 7 are accommodated side by side in the hollow portion thereof in the axial direction.

The above-mentioned general pressure-sensitive zero formed by a plurality of parts In the pressure-sensitive component holding portion 3a formed of the tubular body 34, the dielectric material 71 and the terminal member 72 which are members that do not move in the axial direction are similar to each other. 4 (A), the opening portion 35 which is an opening in a direction orthogonal to the axial direction of a portion of the side peripheral surface of the tubular body 34 constituting the pressure-sensitive component holding portion 3a is generally shown. It is inserted from a direction perpendicular to the axial direction of the cylindrical body 34 and perpendicular to the substrate surface 8a of the printed circuit board 8, and is accommodated as shown in Fig. 1 in general.

The cylindrical body 34 constituting the pressure-sensitive component holding portion 3a is opened on the side of the core 4 in the axial direction, and is formed on the side of the printed circuit board mounting portion 3b. The wall portion 37 is blocked. Further, the connection portion between the side surface of the cylindrical body 34 and the wall portion 37 is formed in the axial direction so as to have a predetermined width which is slightly larger than the thickness of the terminal member 72. Slits 38a, 38b. The terminal member 72 is provided with projecting portions 72a and 72b that are fitted to the slits 38a and 38b. Therefore, the terminal member 72 can be locked in the cylinder so as not to be moved in the axial direction by fitting the projecting portions 72a and 72b into the slits 38a and 38b of the tubular body 34. At the shape 34.

Further, at the inner wall of the cylindrical body 34, at an position adjacent to the slits 38a and 38b in the axial direction, an opening having an inner diameter smaller than the cylindrical body 34 is formed. A groove 39 having an inner diameter of a portion of 35 and a larger inner diameter (refer to Fig. 4(A)). The dielectric material 71 has a shape in which it is fitted into the groove 39, and is formed into a plate-like body having a thickness corresponding to the width of the groove 39 in the axial direction. Therefore, the dielectric 71 is inserted into the groove 39 of the tubular body 34 through the opening 35, and is fitted in the cylindrical body 34 in the fitted state without moving in the axial direction. .

The terminal member 72 that functions as the first electrode of the variable capacitance capacitor includes a guide portion 72d. When the guide piece portion 72d is housed in the pressure-sensitive component holding portion 3a, it passes over the wall portion 37 of the tubular body 34 and is placed on the substrate of the printed substrate 8 placed on the printed circuit board mounting portion 3b. The pad portion (not shown) of the surface is soldered.

In addition, the terminal member 72 is configured to press the side surface portion on the side of the opening portion 35 of the dielectric material 71 when the dielectric material 71 and the terminal member 72 are housed in the pressure sensitive component holding portion 3a. L-shaped protrusion 72e.

The holding member 73 is made of a non-conductive material, in this example, a resin which is an insulating material, and as shown in FIG. 4, on the side of the core 4 side in the axial direction thereof. A cylindrical shape portion 73a provided with a recessed hole 73b for press fitting the rod-shaped portion 62 of the core holder 6 and a side opposite to the side of the recessed hole 73b in the axial direction are provided. An annular projection 73c is provided with a recessed hole 73d into which the conductive member 74 is fitted.

In order to facilitate the press-fit fitting of the rod-shaped portion 62 of the core holder 6 to the recessed hole 73b, the cylindrical shape portion 73a of the holding member 73 is formed along the recessed hole 73b. A slit 73e in the axial direction. In other words, the cylindrical shape portion 73a of the holding member 73 is formed with the slit 73e to form a rod portion with the core holder 6. The corresponding grip portion and holding member 73 hold the core holder 6 firmly and hold it. In other words, the cylindrical shape portion 73a of the holding member 73 constitutes a core holder holding portion, and the holding member 73 constitutes a holding portion.

Further, the annular projection 73c of the holding member 73 is also provided with a slit 73f formed to be connected to each other with the recessed hole 73d interposed therebetween. By the presence of the slit 73f, the conductive member 74 is surely held by the annular projection 73c and held by the holding member 73.

Further, in the side surface portion of the cylindrical portion 73a of the holding member 73, the opening portions 73g and 73h that are in communication with the recessed hole 73b are formed so as to face each other with the cylindrical central axis position therebetween. Further, engagement projections 73i and 73j are formed on the circumferential side surface of the cylindrical shape portion 73a of the holding member 73.

On the other hand, in the vicinity of the distal end portion 62a of the rod portion 62 of the core holder 6, step portions 62b and 62c that engage with the openings 73g and 73h are formed. When the rod portion 62 of the core holder 6 is press-fitted into the recessed hole 73b of the holding member 73 as shown in Fig. 2(A), the step portions 62b and 62c are connected to the opening portion. The wall portions of 73 g and 73 h are in contact with each other, and are engaged so as not to fall off on the side of the core 4 .

The conductive member 74 is formed of an elastic member which is electrically conductive and elastically deformable, and is formed, for example, of a conductive rubber or a pressure-conductive rubber. The conductive member 74 is provided with a projection 74a that is fitted into the recessed hole 73d of the annular projection 73c of the holding member 73. Further, the elastic member 75 is formed of, for example, a coil spring having conductivity, and includes a coil portion 75a having elasticity and a terminal piece 75b provided at one end portion of the winding portion 75a, And a connecting portion 75c provided at the other end portion of the winding portion 75a.

The elastic member 75 is combined in the axial direction of the holding member 73 so as to accommodate the annular projection 73c of the holding member 73 in the winding portion 75a. Further, the projection 74a of the conductive member 74 is fitted into the recessed hole 73d of the annular projection 73c of the holding member 73. At this time, the connecting portion 75c of the elastic member 75 is inserted into the bottom portion of the recessed hole 73d formed in the annular projection 73c from the slit portion of the annular projection 73c of the holding member 73. Therefore, when the small diameter portion 74b of the conductive member 74 is press-fitted into the annular projection 73c of the holding member 73, the end surface of the small diameter portion 74b of the conductive member 74 is bonded to the elastic member 75 having conductivity. The connecting portion 75c is in contact with each other and is electrically connected.

When the terminal piece 75b of the elastic member 75 is inserted into the tubular body 34, the terminal piece 75b is placed across the dielectric material 71, the terminal member 72, and the wall portion 37 and placed on the printed circuit board mounting table portion 3b. The conductive pattern on the substrate surface of the printed substrate 8 is soldered.

Moreover, the conductive member 74 is bonded to the holding member 73 in the axial direction thereof via the elastic member 75 (refer to FIG. 2(A)), and is inserted into the cylindrical body 34 from the opening side of the recessed hole 31. Inside. The engaging projections 73i and 73j formed at the side peripheral surface of the cylindrical shape portion 73a of the holding member 73 are engaged and formed in the configuration. In the engagement step portions 34a and 34b (refer to FIG. 2(A)) at the side peripheral surface of the cylindrical body 34 of the pressure-sensitive component holding portion 3a, the holding member 73 is not in the core The four sides are engaged from the recessed holes 31 of the cylindrical body 34 to be engaged. However, when the holding member 73 is housed in the hollow portion of the tubular body 34, when the writing pressure is applied from the core 4 side, the holding member 73 can be oriented in the hollow portion of the tubular body 34 toward the shaft. The opposite side of the core 4 moves in the direction of the heart. On the other hand, when the application of the writing pressure from the side of the core 4 disappears by the elastic biasing force of the elastic member 75, the engaging projections 73i and 73j are returned to the engaging step portions 34a and 34b. State.

After the pressure-sensitive component 7 is housed in the tubular body 34 constituting the pressure-sensitive component holding portion 3a as described above, the end surface on the opening side of the recessed hole 31 of the tubular body 34 is shown in Fig. 4 ( The above-described conductor terminal member 14 shown in B) sandwiches the two planes in which the projections 32 and 33 are formed by the mounting body portions 142 and 143 as described above. The projections 32 and 33 are fitted into the through holes 142a and 143a of the mounting plate portions 142 and 143, and are elastically attached. Then, as described above, the rod-shaped portion 62 of the core holder 6 fitted to the conductive elastic member 9 is inserted into the cylindrical body through the through hole 141a of the contact terminal portion 141 of the conductor terminal member 14 The recess 31 of the 34 is fitted into the holding member 73. Thereby, the core holder 6 is held with respect to the pressure-sensitive component holding portion 3a of the substrate holder 3.

After that, the core holder 6 is fitted to the pressure-sensitive component holding portion 3a of the substrate holder 3 as described above. Then, the core body portion 41 of the core 4 is press-fitted into the through hole 9a of the conductive elastic member 9 fitted to the core holder 6. Thereby, the core 4 is firmly held with respect to the core holder 6 by the conductive elastic member 9 as described above.

At this time, since the core 4, the conductive elastic member 9, and the core holder 6 are all electrically conductive, the conductive coil spring 13 and the conductor terminal member 14, the core 4 and the printed substrate 8 are The signal transmitting circuit 8S is electrically connected (refer to FIG. 2(B)). Therefore, the signal from the signal transmitting circuit 8S of the printed circuit board 8 is sent out from the core 4.

In this case, the core 4, the conductive elastic member 9, the core holder 6, and the coil spring 13 made of a conductive material are sequentially arranged side by side in the axial direction and electrically connected. In the state, the holding member 73 constituting the writing pressure detecting module is made of an insulating material. Therefore, in the portion of the writing pressure detecting module, the electrical connection in the axial direction is Interrupted. However, in this embodiment, the electrical connection of the axial direction is ensured by bypassing the writing pressure detecting module by the conductor terminal member 14 that is locked to the writing pressure detecting module. According to the configuration, even if there is a writing pressure detecting module made of an insulating material in the axial direction, electrical connection can be easily realized in the axial direction.

As described above, the core 4 can be press-fitted into the through hole 9a of the conductive elastic member 9 fitted to the core holder 6 and held by the core holder 6. Towards the front end The direction of the side of the portion 42 is pulled out. Therefore, as in the foregoing, the core 4 can be exchanged.

In addition, as shown in FIG. 4, the step portion 3c formed at the joint portion between the printed circuit board mounting portion 3b of the substrate holder 3 and the pressure sensitive component holding portion 3a is crossed. The conductor piece 15 is provided in the form of the step portion 3c. One end portion 15a of the conductor piece 15 is connected to the ground conductor of the printed circuit board 8 of the printed circuit board mounting table portion 3b. On the other hand, the other end portion 15b of the conductor piece 15 is connected to the front cap 22 made of a conductive material which is in contact with the step portion 3c. Thereby, the ground conductor of the printed circuit board 8 is electrically connected to the front cap 22, the case body 21, and the rear cap 23.

In the position indicator 1, when pressure is applied to the front end portion 42 of the core 4, the core 4 is displaced in the axial direction and toward the rear cap 23 side in response to the pressure. By the displacement of the core 4, the holding member 73 in the pressure-sensitive component holding portion 3a joined to the core body portion 41 is in opposition to the elastic biasing force of the elastic member 75 and faces the dielectric. 71 side displacement. As a result, the conductive member 74 fitted to the holding member 73 is displaced toward the dielectric 71 side, and the distance between the conductive member 74 and the dielectric 71 is even between the conductive member 74 and the dielectric 71. The contact area is changed in response to the pressure applied to the core 4.

Thereby, the capacitance of the variable capacitance capacitor formed between the terminal member 72 constituting the first electrode and the conductive member 74 constituting the second electrode changes depending on the pressure applied to the core 4. The change in the electrostatic capacitance of the variable capacity capacitor is detected by the IC 10 provided on the printed circuit board 8, and the writing pressure is detected.

The IC 10 of the position indicator 1 is for the position detecting device, for example, sends a burst signal for position detection. On the circuit formed on the printed circuit board 8 of the position indicator 1, during the period in which the burst signal is sent, the static electricity of the variable capacity capacitor formed by the above-described pen pressure detecting module is executed. The capacity to detect the action of the pen pressure. Further, the position indicator 1 sends the coded signal corresponding to the detected pen pressure from the core 4 after the end of the delivery period of the burst signal.

The position detecting device receives, for example, a signal from the position indicator 1 by the sensing unit, and the sensing unit is provided by a plurality of signals arranged in the first direction (for example, the X-axis direction). The conductor is configured by a plurality of conductors disposed in a second direction (for example, the Y-axis direction) orthogonal to the first direction. In this case, the position detecting device receives the position indicator 1 by detecting which of the plurality of conductors that are arranged in the first direction of the sensing unit. The burst signal is used to detect the position of the indicated position in the X-axis direction caused by the position indicator 1, and by detecting which of the plurality of conductors arranged in the second direction is made In response to the signal, the position of the indicated position in the Y-axis direction caused by the position indicator 1 is detected. Thereby, the X coordinate and the Y coordinate of the pointed position by the position indicator 1 on the sensing portion are detected. Thereafter, the position detecting means is a code corresponding to the pen pressure sent from the position indicator 1 after the burst signal is sent. The signal is decoded to detect the pen pressure.

The circuit configuration of the position detecting device is not limited to the above-described configuration, and thus detailed description thereof will be omitted in the present specification.

[Effect of the embodiment]

As described above, according to the capacitance indicator position indicator 1 of the above-described embodiment, the core 4 can be exchanged, and the core 4 can be passed through the conductive elastic member 9 as well. The core holder 6 is firmly held, and the signal generating circuit and the core 4 formed on the printed circuit board 8 can be electrically connected to the core holder 6, the coil spring 13, and the conductor terminal member 14. connection. Therefore, the signal from the signal generating circuit of the printed circuit board 8 can be surely sent out from the core 4.

In addition, according to the above-described embodiment, the core 4, the conductive elastic member 9, the core holder 6, the coil spring 13, and the conductor terminal member 14 can be attached to the pressure sensitive component holding portion 3a. The substrate holder 3 is arranged side by side in the axial direction, and is fitted and coupled, and the connector is housed in the casing 2 of the position indicator 1 to be electrically connected.

Therefore, the position indicator 1 of this embodiment can be manufactured by simple engineering and becomes a structure suitable for mass production.

[Modification of important part of position indicator] [First Modification]

FIG. 5 is a view for explaining an example of a position indicator that is configured to hold the core 4 more firmly with respect to the core holder 6 via the conductive elastic member 9.

In the position indicator of this modification, the configuration of the conductive elastic member and the core holder composed of the conductive rubber is different from that of the position indicator 1 of the above-described example. Other than this, it is the same configuration as the position indicator 1 of the above-described example.

In other words, as shown in FIG. 5(A), the conductive elastic member 9A of the position indicator of this modification has a cylindrical shape similarly to the above-described conductive elastic member 9, and is provided with The grip portion 91 is provided with locking projections 94 and 95. However, in the conductive elastic member 9A of this example, the outer diameter of the cylindrical portion of the cylindrical shape portion from the position of the locking projections 94 and 95 to the grip portion 91 is configured to be As it gets closer to the grip portion 91, it gradually increases.

Further, in the conductive elastic member 9A of this example, as the hole portion, as shown in FIG. 5(A), the through hole is not formed, but the core body portion of the core 4 is formed. 41 is a recessed hole 9Aa. Therefore, at the recessed hole 61Aa in which the fitting portion 61 of the core holder 6A of the conductive elastic member 9A is fitted, there is no core support as in the case of the position indicator 1 described above. The recessed hole 61b of the device 6 generally allows the front end of the core body portion 41 to be inserted into the recessed hole.

Since the conductive elastic member 9A as described above is used, as shown in FIG. 5(B), the conductive elastic member 9A is fitted to the housing fitting portion 61 of the core holder 6. The position of the conductive elastic member 9A from the locking projections 94, 95 in the state in which the locking projections 94, 95 are engaged with the opening portions 63 and 64 of the core holder 6 in the recessed hole 61Aa. The outer diameter of the cylindrical portion up to the grip portion 91 gradually increases as it approaches the grip portion 91. Therefore, the recessed hole 9Aa of the conductive elastic member 9A is such that the grip portion 91 side Displaced in a narrower way.

Since the grip portion 91 is a thin portion as described above and has slits 92 and 93 (not shown in FIG. 5), the core body portion 41 of the core 4 is placed. At the time of press-fitting, the core body portion 41 of the core body 4 is displaced as shown in Fig. 5(C). Further, in the fitting state of the core body 4 to the core holder 6 via the conductive elastic member 9A, as shown in Fig. 5(C), the core body portion 41 of the core 4, This is caused by the narrowing of the grip portion 91 and is more firmly maintained. Of course, by pulling the core 4 with a certain force against the fitting between the core 4 and the core holder 6, the core 4 can be pulled out from the conductive elastic member 9A.

In addition, in the example of FIG. 5, the outer diameter of the cylindrical shape portion of the conductive elastic member 9A from the position of the locking projections 94 and 95 to the grip portion 91 is configured as The closer to the grip portion 91, the closer the grip portion 91 is. However, the entire outer diameter of the cylindrical portion of the conductive elastic member 9A may be included to gradually increase as it approaches the grip portion 91.

In addition, in the conductive elastic member 9A of the example of FIG. 5, Similarly, the hole portion may be formed not by the recessed hole 9Aa but by the through hole 9a similar to the conductive elastic member 9 of the above-described example. In this case, the core can also be used. The core body portion 41 of the body 4 is more firmly held by the narrowing of the grip portion 91.

[Second Modification]

In the position indicator 1 of the above-described embodiment, a configuration is adopted in which the conductive elastic member 9 which is an independent member is fitted to the core holder 6. However, the conductive elastic member may be previously attached to the recessed hole of the core holder.

Fig. 6 is a view showing the core holder 6B and the core 4B used in the position indicator of the example of such a configuration. As shown in Fig. 6, in this example, at the wall surface of the recessed hole 61Ba of the housing fitting portion 61B of the core holder 6B, a conductive elastic member 9B made of, for example, a conductive rubber is attached in advance. .

On the other hand, in the core body 4B of this example, the core body portion 41 and the tip end portion 42 have the same configuration as the core body 4 of the above-described embodiment, but are at the end of the core body portion 41. In this case, the conductive fitting portion 43 made of a conductive material, for example, a conductive resin (conductive rubber) is formed, which is different from the core 4 of the above-described embodiment.

Moreover, in this example, the conductive fitting portion 43 of the end portion of the core body portion 41 of the core 4B is inserted into the recessed hole 61Ba of the housing fitting portion 61B of the core holder 6B. Body 4B is fitted and held At the core holder 6B.

Fig. 7 is a view for explaining a method of manufacturing the core 4B of this example. As shown in Fig. 7(A), a molten conductive rubber liquid 43Lq is prepared in a specific container 44. In the core body 4B of this example, the end portion of the core body portion 41 is immersed in the liquid 43Lq of the conductive rubber in the container 44, and the liquid 43Lq of the conductive rubber is adhered to the core body portion 41. The end portion is then pulled up, and the adhered conductive rubber liquid 43Lq is dried to be surely attached to the core body portion 41. An appropriate size is formed at the end of the core body portion 41 by immersing, pulling, and drying the liquid 43Lq of the conductive rubber in the container 44 at the end of the core body portion 41 described above. And a conductive fitting portion 43 having a shape (refer to Fig. 7(B)).

Further, the conductive fitting portion 43 may be formed in advance and fitted to the core body portion 41 of the core 4, and then fixed to the core body portion 41 by an adhesive.

[Third Modification]

The third modification is a further modification of the second modification, and the core holder 6B of the second modification is directly used. Further, in the third modification, the configuration of the core is different from that of the second modification.

Fig. 8 is a view showing the core holder 6B and the core 4C used in the position indicator of the third modification. As shown in Fig. 8, the core 4C of this example is the same as the core 4, so that The core body portion 41 and the tip end portion 42 formed of a conductive material are integrally formed, and a thread-cut portion 41a is formed at an end portion of the core body portion 41. Moreover, the portion of the core main body portion 41 in which the screw-cut portion 41a is formed is press-fitted into the recessed hole 61Ba of the housing fitting portion 61B of the core holder 6B. At this time, the thread-cut portion 41a of the core body portion 41 is engaged with the conductive elastic member 9B adhering to the wall surface of the recessed hole 61Ba formed in the housing fitting portion 61B of the core holder 6B. The friction between the two, the core 4C is firmly held at the core holder 6B.

In addition, it is not limited to the case where the core body portion 41 itself is thread-cut and the thread-cut portion 41a is formed, and the screw member may be fixed to the end portion of the core body portion 41 as a thread. The configuration of the cutout portion 41a.

[Fourth Modification]

Fig. 9 is a view showing the core holder 6D and the core 4D used in the position indicator of the fourth modification. As shown in FIG. 9, the core holder 6D of this example is housed in the housing recess 61Da of the housing portion 61D, and the conductive elastic member 9D is preliminarily received and fixed with a conductive material. Bubble) component.

On the other hand, in the core body 4D of this example, the core body portion 41 and the tip end portion 42 made of a conductive material are integrally formed in the same manner as the core body 4, and the core body portion 41 is formed. The end portion is sharp and is formed with a distal end sharp portion 41b. Also, the core 4D is made of a core The front body sharp portion 41b of the body main body portion 41 is inserted into the molded member of the conductive elastic member 9D and fitted.

In the fourth modification, the end portion of the core body portion 41 itself is sharp and the distal end sharp portion 41b is formed. However, a screw member that can sharpen the tip end and can be screwed in can be used. It is fixed to the end of the core body portion 41 and is configured as a tip end sharp portion 41b.

In the fourth modification, the housing recess 61Da of the core holder 6D is configured to accommodate a molding (foaming) member of a conductive material. However, the molding member may not be a molding member as long as it is a body member. The conductive material can be pierced by the distal end sharp portion 41b of the end portion of the core body portion 41 to hold the core 4 at the core holder 6, and the core 4 can also be pulled out. No matter what kind of material.

[Fifth Modification]

In the above-described embodiment, the core body 4 is formed by integrally forming the core body portion 41 and the tip end portion 42 with a conductive resin. However, the core may be formed of various conductive materials, and the core body portion and the front end portion of the core may be formed by separate individuals (different materials).

In Fig. 10, several variations of the core are shown. In other words, Fig. 10(A) is the same as the above-described example, and the core body portion 41 and the tip end portion 42 are integrally formed. However, conductivity is used as a conductive material. The core 4E in the case of metal. Further, the conductive material in this case is not limited to the conductive resin or the metal, and conductive felt or the like may be used.

The core body 4F of the example shown in Fig. 10(B) is configured by combining a core body portion 41F and a tip end portion 42F which are members which are independent from each other. As a method of joining the core main body portion 41F and the front end portion 42F, a method of joining or screwing or the like may be employed.

The core body portion 41F of this example is made of a conductive material having a high hardness as a core and having a high hardness, for example, a metal or a hard conductive resin. Further, the distal end portion 42F is made of a material that can provide a feeling of good slidability as a contact feeling between the input surface of the core 4F and the position detecting device, or a material that can obtain a feeling of resistance with a slight resistance or A conductive material that can be considered as a material that can obtain a soft touch is made of, for example, a conductive resin.

As in this case, by configuring the core body portion and the front end portion by different members, it is possible to constitute a plurality of types of cores capable of obtaining various writing sensations, and the user can be various kinds of such types. A core having a desired writing feel is selected from the core for use.

The core body 4G of the example shown in Fig. 10(C) is the same as the example of Fig. 10(B), and the core body portion 41G and the front end portion 42G are independent members, but the core body portion 41G is provided with a joint portion 41Ga between the front end portion 42G and a joint area between the front end portion 42G and the front end portion 42G, which is larger than the example of Fig. 10(B), and can be made more Firmly combined.

Further, in the example of Fig. 10(C), the core main body portion 41G and the distal end portion 42G are each formed of a conductive resin, but they are made of mutually different materials by melting. Two-color molding, especially in the case of hot melt, is combined and formed. The distal end portion 42G is configured by, for example, an elastic body, and the core main body portion 41G is made of, for example, polycarbonate. Of course, these resins are those that are electrically conductive. In addition, in the example of FIG. 10(C), the elastic body constituting the distal end portion 42G can be configured to have various types of writing feeling by using an elastic body having various hardnesses and textures. The core 4 is.

The core 4H of the example shown in Fig. 10(D) has a configuration in which the distal end portion 42H is divided into a base portion 42Ha and a protruding portion 42Hb, and these are formed by two-color molding. In addition, the core body portion 41H is fitted into the concave portion formed at the base portion 42Ha of the distal end portion 42H, and is joined by, for example, a joining material.

The protruding portion 42Hb is preferably made of an elastic body, preferably an elastic body made of thermoplastic, and the base portion 42Ha is made of a conductive resin which is harder by the protruding portion 42Hb, for example, by being electrically conductive. Made of polycarbonate or ABS resin. Further, the core body portion 41C is made of, for example, a metal.

As described above, the core body can be prepared such that at least the material of the front end portion is a different plural type. For example, it is possible to prepare a material which is capable of obtaining a feeling of good slidability as a contact feeling between the front end portion of the core body and the input surface of the position detecting device, or a material which can obtain a feeling of resistance with a slight resistance or can be obtained. A soft, touch-sensitive material.

[Other Modifications]

Further, in the above description of the embodiment, the drive power of the position indicator is set as the battery, but a capacitor for accumulating the power supply voltage may be provided in the position indicator, and the capacitor may be used as the drive power source. use. In this case, the configuration in which the power source voltage is accumulated in the capacitor may be a configuration of a charging circuit that receives electric power from the outside and is charged by electromagnetic induction or electric field coupling, and may be further provided at the position indicator. A charging terminal is provided and a charging current is supplied from a dedicated charging device through the charging terminal. Further, the electric energy source (electromagnetic energy or electric field energy) from the outside may be supplied from the position detecting device to the position indicator, or may be configured to be supplied from a dedicated power supply device.

Further, in the above-described embodiment, the electrical connection member is configured by the coil spring 13 and the conductor terminal member 14. However, the configuration is not limited to this configuration, and it is possible to The member for electrically connecting the core holder 6 and the signal transmitting circuit may be of any configuration. In particular, when the position indicator of the pen pressure detecting module is not mounted, since the core holder 6 does not move in the axial direction, it is not necessary to have a general meeting like the coil spring 13. The conductive member that is elastically displaced, and the member for electrical connection can also be constructed as a single component.

Claims (23)

A position indicator comprising: a core body having electrical conductivity; and a conductive elastic member having a gripping portion for holding and fixing the core body, and detachably mounting the core body And a core holder having electrical conductivity and fitting the conductive elastic member to hold the core body fitted to the conductive elastic member; and signaling And an electrical connection member for electrically connecting the core support device and the signal transmitting portion, and transmitting a signal from the signal transmitting portion to the electrical connecting member The core holder and the conductive elastic member are conveyed by the core. The position indicator according to the first aspect of the invention, wherein the conductive elastic member has a cylindrical shape having a hole portion for fitting the core body, and the grip portion is provided from the foregoing a slit portion of the cylindrical shape in the central axis direction of the cylinder in the direction of the central axis of the cylinder, and is provided at one end side of the cylindrical shape in the central axis direction of the cylinder, and The core body that is fitted into the hole portion from the one end side is gripped and fixed. a position indicator as recited in claim 1 of the patent application, In the above-described conductive elastic member, a cylindrical shape having a hole portion for fitting the core body is provided, and a diameter is provided at one end side of the cylindrical central axis direction of the cylindrical shape. The grip portion for gripping and fixing the core body fitted in the hole portion, which is smaller than the maximum outer diameter of the cylindrical shape, is fitted to the hole from the one end side The core body in the portion is held and fixed by the grip portion. The position indicator according to the second or third aspect of the invention, wherein the hole portion of the conductive elastic member is a through hole through which the core body passes. The position indicator according to the second aspect or the third aspect of the invention, wherein the core holder is provided with an inner diameter in which the cylindrical elastic conductive member is fitted to be larger than the conductive a cylindrical recessed hole having a smaller outer diameter than the maximum outer diameter of the elastic member; when the conductive elastic member is fitted into the recessed hole, the gripping portion of the conductive elastic member is oriented toward The central axis of the cylinder is narrowed in the direction, and the core body to be fitted into the hole portion is held. The position indicator according to claim 5, wherein the core holder is provided with a protrusion at an outer wall of the conductive elastic member, and is provided at the core holder Have When the conductive elastic member is fitted, the engaging portion that is engaged with the protruding portion provided at the outer wall of the conductive elastic member is engaged with the engaging portion by the protruding portion The conductive elastic member is held by the core holder. The position indicator according to the first aspect of the invention, wherein the core holder is opposite to a side of the core conductive body to which the conductive elastic member to be fitted is fitted A pen pressure detecting portion is connected, and the core holder is applied to the pen pressure detecting portion by a pen pressure applied to the core body held by the conductive elastic member. The position indicator according to claim 7, wherein the writing pressure detecting unit includes a holding portion, and the holding portion is provided with a core holder for holding and fixing the core holder The holding portion is made of a non-conductive material. The position indicator according to claim 8, wherein the holding portion includes a recessed hole for fitting the core holder in a direction of an axial direction of the position indicator, the core holder The holding portion is provided with a slit along the axial direction from one end side of the axial direction of the holding portion, Further, it is provided at one end side of the aforementioned axial direction of the holding portion, and the core holder inserted from the one end side is held and fixed. The position indicator according to claim 1, wherein the electrical connection member is formed of a conductive coil spring and an electric conductor electrically connected to the signal transmitting portion. The conductor terminal member is configured to be electrically connected to the core holder by engaging one end side of the conductive coil spring with the core holder, and by the aforementioned The other end side of the conductive coil spring is in contact with the conductor terminal member and is electrically connected to the signal transmitting portion. The position indicator according to claim 10, wherein the core holder is pressed toward the core side in the central axis direction by the coil spring. The position indicator according to claim 11, wherein the core holder moves in the direction of the central axis when a pen pressure is applied to the core, and when the pen pressure is applied When the application disappears, the core holder is returned to the original position by the pressing force of the coil spring. The position indicator according to claim 1, wherein the core body includes a shaft portion that protrudes at least partially from the outer front portion and a shaft portion that is connected to the front end portion. The position indicator according to claim 13, wherein the shaft portion is thinner than the front end portion of the core body. The position indicator according to claim 13, wherein the front end portion and the shaft portion of the core body are made of metal. The position indicator according to claim 13, wherein the front end portion of the core body is made of a conductive resin, and the shaft portion is made of a metal. The position indicator according to claim 13, wherein the front end portion and the shaft portion of the core body are made of a conductive resin. The position indicator according to claim 13, wherein the front end portion of the core body is made of a first conductive resin, and the shaft portion is made of a second conductive resin. The position indicator according to claim 13, wherein the front end portion and the shaft portion of the core body are made of conductive felt material. The position indicator according to claim 13, wherein a tail end portion of the shaft portion opposite to the front end portion of the core body is a tip portion. The position indicator according to claim 13, wherein the end portion of the shaft portion opposite to the front end portion of the core body is threaded. The position indicator according to claim 13, wherein a conductive resin is fused to a tail end portion of the shaft portion opposite to the front end portion of the core body by the aforementioned Conductive resin In part, it is fitted to the aforementioned conductive elastic member. The position indicator according to claim 13, wherein the conductive elastic member has a conductive bubble structure and is embedded in the core holder, and the core is made of the core The body is formed by piercing the tail end portion of the tip portion so that the core body can be held and electrically connected.